Question

If - 1/2 is a solution of the equation 3x² + 2kx – 3 = 0, find the value of k.

Answer 1

Step-by-step explanation:

3(-1/2)²+2k(-1/2)-3

3/4-k-3

3-4k-12=0

-4k-9=0

k,=-9/4

Answer 2

Answer:

Given, x = -1/2

3x² + 2kx - 3 = 0

3.(-1/2)² + 2k.-1/2 - 3 = 0

3. 1/4 - k - 3 = 0

3 - 4k - 12 = 0

-4k - 9 = 0

k = -9/4